# Density + fundamentals of Physics - practice problems

#### Number of problems found: 50

- Cuboid 5

Calculate the mass of the cuboid with dimensions of 12 cm; 0.8 dm and 100 mm made from spruce wood (density = 550 kg/m^{3}). - Brass tube

The outer perimeter of brass tube (ρ = 8.5 g/cm^{3}) is 38 cm. Its mass is 5 kg, length 54 cm. What is the pipe wall thickness? - Hollow sphere

The steel hollow sphere floats on the water plunged into half its volume. Determine the outer radius of the sphere and wall thickness, if you know that the weight of the sphere is 0.5 kg and the density of steel is 7850 kg/m^{3} - Weight of air

What is the weight of air in the living room measuring width 8 m length 5 m and height 3.1 m? Air density is ρ = 1.2959 kg/m³. - Cuprum

From 1600 mm long sheet of copper plate 2 mm thickness, we have separated over the whole length the belt weighing 6000 g. Calculate belt width if one dm³ copper weighs 8.9 kg. - Medal

Calculate the gold Olympics medal's approximate weight if its diameter is 8 cm and a thickness 6 mm. The density of gold finds out in the tables or on the Internet. - Reservoir + water

The reservoir filled with water weighs 12 kg and after pouring off three-quarters of the water weights 3 kg. Calculate the weight and volume of the reservoir. - Icerink

Rectangular rink with dimensions of 68.7 m and 561 dm must be covered with a layer of ice 4.2 cm thick. How many liters of water is necessary for the formation of ice when the volume of ice is 9.7% greater than the volume of water. - Gold wire

From one gram of gold was pulled wire 1.4 km length. What is its diameter if the density of Au is ρ=19.5 g/cm³? - Eiffel Tower

Eiffel Tower in Paris is 300 meters high and is made of steel. Its weight is 8000 tons. How tall is the tower model made of the same material if it weighs is 2.4 kg?

We apologize, but in this category are not a lot of examples.

Do you have an exciting math question or word problem that you can't solve? Ask a question or post a math problem, and we can try to solve it.

Do you have an exciting math question or word problem that you can't solve? Ask a question or post a math problem, and we can try to solve it.

Tip: Our Density units converter will help you with the conversion of density units. Density - practice problems. Fundamentals of Physics - practice problems.